Wire-clamp



Patented Nov. 2, 1897.

I N V E NTO R i nes-dvix.

.Httor/zey (N0 Mode'l.)

W. H. BRODIB.

WIRE CLAMP.

WITNESSES.'

UNTTBD STATES PATENT rrrcn.

WILLIAM II. BRODIE, OF BROOKLYN, NEW YORK.

SPECIFICATION forming part of LettersJ'IatentNo. 592,949, dated November 2, 1897. Application filed May 8, 1896. Serial No. 590,709. (No model.)

T0 LZZ whom it may concern.-

Beit known that I, WILLIAM H. BRoD1E,a citizen of the United States,residing at Broollyn, Kings county, New York, have invented certain Improvements in VVire-Clamps, of which the following. is a specification.

This invention retates to certain improvements in that class of wire-clamps which are employed for suspending trolley-wires and the like; and the object of the invention kis to provide a device of this character of a simple and inexpensive construction which shallbe light, strong, and durable, and shall be adapted to hold securely clamped trolley or other wires of different diameters.

rlhe invention contemplates certain novel features of the construction of the device, together with certain combinations and arrangements of the various parts, whereby cer-` tain important advantages are attained and the clamp is made simpler, cheaper, and otherwise better adapted and more convenient for use than various other similar devices heretofore employed, all as will be hereinafter set forth.

The novel features of the invention will be carefully defined in the claims.

In order that my invention may be the better understood, I have shown in the accompanying drawings a wire-clamp embodying my improvements, in which drawings- Figure l is a longitudinal vertical mid-section taken through the clamp, and Fig. 2 is a transverse mid-section takenin the plane indicated by the line 2 2 in Fig. l. Fig. 3 is a transverse section taken through the'clamp in the plane of the line 3 3 in Fig. 5. Fig. 4 is a fragmentary plan view showing the central portion of the device with the conical expanding nut omitted, and Fig. 5 is a plan View of the complete device.

Referring to the drawings, A and B represent the two parts or sections of the clamp, these sections being of similar construction and each being of an elongated form. The sections or parts A and B are provided on their inner faces with projecting perforated lugs a and b, respectively, there being three such lugs on each section.

The outer lugs b on the section or part B of the clamp are arranged to fit, when the device is assembled, between the outer lugs of,

on the partor section A, but the inner lugs @and b on the respective sections are so arranged as to stand somewhat spaced apart when the sections are fittedy together, said inner lugs embracing between them the head c of a screw O, arranged centrally with respect to the clamp. v A

Through the perforations in the respective lugs a and b of the parts or sections A and B is arranged to pass a hinging rod or pin e,

' serving to connect the parts or sections of the clamp pivotally together, and the head c of the screw C is also perforated to permit the passage through it ofthe said rod 'or pin e, whereby the screw C is secured in place. In this way it will be seen the, parts or sections A and B being hinged together their lower edges form jaws a and b', adapted to receive and hold the trolley or other wire, and in order to enable said jaws to the better engage and grip the wire grooves or channels are formed on the inner edge surfaces of the jaws, as clearly indicated in the sectional views Figs. 2 and 3. In the drawings the wire is indicated at and it will be seen that wires ofdifferent diameters may be engaged in said grooved jaws and securely held.

The respective parts or sections A and B of the clamp are formed at the upper parts of their central portions with lips a2 and b2,which v are conical on their inner surfaces being,flared foutward from their lower part-s vto the upper,

and said lips are arranged to be engaged by a conical nut or wedging-block D, screwing on the upper end of the screw C. The nut D has, as shown, a hexagonal form to adapt it to be readily engaged by a wrench or the like, and in its upper part said nut is formed with a counterbore d to receive the bolt or screw (not shown) by means of which the clamp is to be suspended.

In use the wire :n to be clalnped is inserted between the two jaws a' h and iitted into the grooves on the inner surfaces of the jaws, after which the conical expanding nut D is turned so as to cause the jaws to securely clamp and hold the wire.

From the above description of my invention it will be seen that the device is of an extremely simple and inexpensive construction and permits the trolley-wire or the like to be securely clamped in place, the construction IOO also permitting the clamp to be readily opened, when desired,by simply unscrewing the nut I).

It will also be obvious from the above description that the invention is susceptible of some modification without material departure fromv its principles and spirit, and for this reason I do not wish to be understood as limiting myself to the precise form and arrangement of the device herein set forth.

Having thus described my invention, I claiml. In a wire-clamp, the combination of two pivotally-conneeted sections adapted to clamp the wire and means comprising a screwthreaded part connected to the sections and a wedging-block having screw-threads en gaging with said screw-threaded part, said 1n cans being arranged for moving said sections into clamping engagement with the wire, substantially as set forth.

2. In a wire-clamp, the combination of two pivotally-connected sections adapted to clamp the wire, a screw-threaded wed ging-block movable between the sections for forcing the sections into clamping engagement with the wire, and a screw-threaded part engaging the screw-threads of said wedging-blocl; to move the same, substantially as set forth.

3. In a wire-clamp, the combination of two parts or sections to clamp the wire, a hingingpin pivotallyconnecting the sections, a screwthreaded wedging-bloek movable between the parts or sections for forcing the same into clamping engagement with the wire, and a screw engaging said wedging-block to move the same, substantially as set forth.

Lt. In a wire-clamp, the combination of two parts or sections pivotally connected and arranged to clamp the wire, a screw connected to the sections and an expanding nut screwing on the screw between the sections and provided with an integral conical portion arranged to engage the sections and force them into clamping engagement with the wire, substantially as set forth.

5. In a wire-clamp, the combination of two parts or sections pivotally connected and arranged to clamp the wire, a screw connected with the sections, and an expanding nut having a wedge-shaped portion arranged to engage the sections and force them into clamp-- ing engagement with the wire, said nutbeing provided with a passage in which are formed two sets of screw-threads, one to be engaged by the screw to move the nut relatively thereto when the nut is turned, and the other to be engaged by a supporting-bolt, substantially as set forth.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

VILLIAM II. BRODIE.

XVitnesses:

W. L. SAwvEn, JOHN R. Snonm. 

